Repair Question

If you have a top skin compression failure (a line of fractured glass across the top of the board) would you make the repair with the cloth oriented 0-90 with the length of the board or 45-45 on the bias of the cloth. It seems if you do the 0-90 repair, half the fibers of the material are doing nothing (not crossing the damaged area). If you go the bias route, all the fibers cross the damaged area, but at a 45 degree angle. I can do the math but the loads are not very well defined (boards are torqued as well as bent in length). Any real world experience? Help would be appreciated. Thanks. phil

If you have a top skin compression failure (a line of fractured glass > across the top of the board) would you make the repair with the cloth > oriented 0-90 with the length of the board or 45-45 on the bias of the > cloth. It seems if you do the 0-90 repair, half the fibers of the material > are doing nothing (not crossing the damaged area). If you go the bias > route, all the fibers cross the damaged area, but at a 45 degree angle. I > can do the math but the loads are not very well defined (boards are > torqued as well as bent in length). Any real world experience? Help would > be appreciated. Thanks.>>> phil Hey Phil i don’t know for sure but if you criscross bias you will create a weak point wher the patch edge is… It’s like when you repair a broken board you want the patch ( cloth ) to load the same as the cloth the board is glassed with. A board will “Twist” and any point the board reaches that load is changed becomes a weak point. Just like when you get a ding a good one in the rail and you keep surfing there is a good chance that the board will Break at that point… Always fix dings in the rail because that is a weak point till it’s fixed… So don’t change the natural flex in a board by changing the lay of the grain???it’s just a good idea… Some may not agree but that’s my thoughts… http://surfnwsc.com